Fourteen people were injured when two double-decker buses collided in Times Square Tuesday afternoon, causing a traffic light pole to topple over and smash onto the ground, authorities say.

The buses crashed at Seventh Avenue and West 47th Street, near the famous red staircase of the TKTS booth in the middle of one of the most heavily trafficked areas of New York City. It's not clear what caused the collision, and the NYPD said officers were still on the scene investigating.